Add mr_url to DatawarehouseEvent
Part of: infrastructure#568
Part of: KMAINT-681
Note: Assisted by Cursor IDE (claude-4.5-sonnet)
All lines of new code are tested but coverage fails: [skip coverage check]
Edited by Andrzej Szczepaniak
Part of: infrastructure#568
Part of: KMAINT-681
Note: Assisted by Cursor IDE (claude-4.5-sonnet)
All lines of new code are tested but coverage fails: [skip coverage check]